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Unit4AmazingScienceTopic1Whenwasitinvented?SectionB()1.He___playcomputergamesunlesshefinishedhishomework.A.wasallowedtoB.wasnotal

lowedtoC.allowto()2.Weallknowthatpaper___wood.A.ismadeofB.ismadeintoC.ismadefrom()3.Thiskindofmachine___in2006.A.isinventedB.ismadeC.

wasinvented()4.A(An)___isusedfortakingphotos.A.CameraB.LiftC.MP3player()5.Weshouldspendmoretime___becauseit’stooimportant.A.tolearnEnglishB.l

earningEnglishC.inEnglishBCCABI.Choosetherightanswer.Youcandoit.II.Fillintheblankswiththerightpreposition.1.Thedeskismade_____woo

d.2.Theredwineismade_____grapes.3.Thisdeliciouscakewasmade___mymother.4.Glassesaremade___glass.5.Ourgroupismadeup___fourstudents

.6.Thatkindofmachineismade_____Japan.offromofofbyininvent/America/in1946A:Wherewerecomputersinvented?B:T

heywereinventedinAmerica.A:Whenwerecomputersinvented?B:Theywereinventedin1946.Lookandtalkaboutthepicture

.MP3player1998Korealistentomusicmobilephone1973AmericacommunicateeasilyPleasechooseonetotalkabout.digitalcamera1975AmericatakephotosA:

What’sthis?B:It’s…A:Whenwasitinvented?B:Itwasinventedin…A:Whoinventedit?B:…1bListento1aandchoosethecor

rectanswers.()1.WhereareMichaelandJane?A.Inthesciencemuseum.B.Attheschoollibrary.C.Inthezoo.D.Inthepark.()2.Whichobj

ectisnotmentionedintheconversation?A.Lightbulb.B.Airplane.C.Television.D.Radio.AC1aLook,listenandsay.Whenwasitinvented?Whoi

nventedit?Look,alightbulb!In1897,ThomasEdison.In1895in1903in18791cRead1aandcompletethetable.InventionInventorYearlightbulbGuglielmoMarconi1903radi

oairplaneThomasEdisonWilburandOrvilleWright187918951aLook,listenandsay.动画1a1dDiscusswithyourclassmatestheinventionslistedin1c.Letthemguesswhichinven

tionyouaredescribing.Youmaybeginlikethis:Itiswidelyusedbypeopleeverywhere.Itwasinventedin1879byThomasEdison.It’s

saidthat…A:Whatarethese?B:…A:Whenweretheyproducedfirst?B:…A:Whatweretheymadeof?B:…Doyouknow?2Fillintheblankswiththeproperformsofthegiv

enwords.Thefirstjeanswereproducedin1855.Atthattime,they___________(notcall)jeansandtheywerejusthard-wea

ringpantsdesignedforworkers.Thepants_____________(make)ofthebrowncloth.Thiskindofcloth______usually______

__(use)formakingtents.Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable.Andmanydifferentjeansstyles_______also_____

___(create).They___________(design)notonlyforworkersbutalsoforteenagersandwomen.Laterjeansarepopularallovertheworld.werenotcalled

weremadewasusedarecreatedaredesignedA.KarlBenzC.AlexanderGrahamBellB.JohnBairdInventionInventorYeara.1926b.1876c.18853Listentothethreep

assages.Matchthepictureswiththefollowinginformation.4aReadthefollowingwords.Listenandcheckthevowels.rock

etcottonhospitalmodelsatellitecameralaptopplastic4bListenandreadthefollowingsentencesaloud,payingattentiontothestressandintona

tion.Thenusethewordsin4atomakeupsimilarconversations.A:`Whenwasthe`digitalcamera`developed?B:Itwas`developedinthe`1970s.A:Isthe`digitalcam

era`developedin`Korea?B:`No.A:`Wherewasit`developed?B:Itwas`developedin`Japan.1.Thelightbulbisw______usedbypeopleeverywhere

.2.ThomasEdisoni_______thelightbulbin1879.3.It’ss______thatheinventedmorethantwothousandthingsduringhislife.4.TheairplanewasinventedbyWilbura

ndOrvilleWrightin1903.It’sd______fromtoday’s.idelynventedaidifferentWelearn:1.Somewords:bulb,airplane,hard-wearing,Korea2.Somephrase

s:beusedby,morethan,bedifferentfrom3.Somesentences:It’ssaidthatheinventedmorethantwothousandthingsdurin

ghislife.Wecan:1.Usethesimplepastpassivevoice:Doyouknowwhenitwasinvented?Itwasinventedin1879.2.Talkabouttheinventorsofsomegreatinventions

.•Read1a.•Memorizetheusefulexpressionsandkeysentencesthatwelearntoday.•FinishSectionBinyourworkbook.•PreviewSectionC.